is there a progress/technology witch, outside the machine witch?
love all the designs by the by ♥
In Wrongworld, the Coven as a whole is a group that seeks progress and witches are the equivalent of 'scientists' in a broad sense. So you can tell everyone in the Coven is 'progress/technology witch' in some measure.
If you're talking about some futuristic Sci-Fi theme, however, there are two matching member besides the Machine Witch; Fermioné the Sea Witch and Linzi the Blight Witch.
Fermioné is literally an alien technician, engineer and architect of various field who came from a different world, another universe - in pursuit of technical research. Her title of Sea Witch is earned from the mutual exchange of knowledge with the Coven and does not really represent her actual expertise. (When she was deciding her title, what she brought was 'Sea' only because she has settled around the 'oceanic' part of the world. Although later it turned out that the sea in question was not a usual sea that we or she could think of, she went for it anyway.)
In Linzi's case, while her metier is phytopathology, she also has some uncanny sense at modifying and converting existing machines to fit her purpose, making mysteriously functioning automation systems. Her 'technologies' are kind of rough on the surface, yet works wonders and helped the world taking some great steps forward.